Picture Control Woes

[Norm Kirchner]

I am working with a picture control with an image larger than the control.

It's a JPG picture that I have read in from a file.

Zooming sucks :thumbdown:

Let me elaborae.

When I zoom out, so that I can see the entire image, the image turns to crap.

Any suggestions?

BTW I can not use the IMAQ image control for this solution.

-Norm

See attached image for example of discoloration when zoomed out

[PJM_labview]

Norm,

Can you attach the original jpeg picture?

I have a few things that I could try.

First, try reading the image (read JPG File) with use 8 bit color table flag set to true.

Note:if it work and If you are still using LV7.0, you will have to do "set control value" on read JPG file, as the "8 bit color table" was disconnected (by mistake by NI) from the ConPane.

Or you can try this (copy from my answer on info labview)

"Check the Bird's Eye View utility.

For the LV6.x code I made a "fake" [read faster]

bilinear interpolation (the name is: Bi-Linear

Interpolation fake__Bird'sEyeView.vi).

It does improve the image - especially text

readability - but makes it softer (slightly blurry)."

PJM